使用zip函数:zip函数可以将两个列表中的元素一一对应组合在一起,返回一个可迭代对象。 遍历组合后的变量:在for循环中,我们使用了两个变量num和letter来分别接收组合后的元素,然后打印出来。 类图 PythonDeveloper- name: string- experience: int+PythonDeveloper(name: string, experience: int)+teachForLoopTwoVaria...
ES.86: Avoid modifying loop control variables inside the body of raw for-loops ES.86:避免在基本for循环的循环体中修改循环控制变量...外在的循环控制方式应该能够让人正确的推测循环内部正在发生什么。无论在迭代表达式中还是环体内修改循环计数都会增加理解难度甚至引发错误。...标记(循环,译者注)变量可能被...
https://stackoverflow.com/questions/18648626/for-loop-with-two-variables datetime operation Get date of the datetime instance 8.1. datetime — Basic date and time types — Python 3.6.6rc1 documentation https://docs.python.org/3/library/datetime.html#datetime.date timedelta Objects - datetime...
Let's consider another example of a for loop, where you make use of two variables to define your control flow: languages = ['R', 'Python', 'Scala', 'Java', 'Julia'] for index in range(len(languages)): print('Current language:', languages[index]) Powered By Current language: R...
2nd_place = "silver" # 错误:以数字开头 user-name = "Bob" # 错误:包含连字符 class = "Math" # 错误:使用关键字 $price = 9.99 # 错误:包含特殊字符 for = "loop" # 错误:使用关键字Python 3 允许使用 Unicode 字符作为标识符,可以用中文作为变量名,非 ASCII 标识符也是允许的了。
Java 中的“While-loop” | C# 中的“For 循环” | Python 中的“For-loop” | | --- | --- | --- | | //让我们初始化一个变量 int I = 3;而(i > 0) {System.out.println("三个 hello ");-我;} | //这是一个迷人的循环for(int I = 0;我<3;i++){控制台。WriteLine(“你好!
SeeFile-like objects in Pythonfor more. Set-like Object An object that acts like the built-insetclass is a set-like object. Just asmappingsaren't always mutable, set-like objects may not always bemutableeither. Variables and Assignment ...
The indirect use of loop variables leads to a lot of confusion for people learning about for loops in languages other than Python. The loop variable is at the center of the code, even though it usually doesn’t play a crucial role — its only purpose is to index the individual elemen...
In Python, we can do something called tuple unpacking to get the items inside the tuples printed. For doing so we need to bring two iterable variables in the for loop: for(item1, item2)intup_list:print(item1)print(item2)print('\n') ...
Variables (变量) 指一个包含部分已知或未知数值或信息之存储地址,以及相对应之符号名称 # A variable is a named value that references or stores a piece of data. # we put a value in a variable using an = sign x = 5 print(x) # x evaluates to 5 ...